122531219 has 2 divisors, whose sum is σ = 122531220. Its totient is φ = 122531218.

The previous prime is 122531203. The next prime is 122531221. The reversal of 122531219 is 912135221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122531219 - 2⁴ = 122531203 is a prime.

It is a super-2 number, since 2×122531219² = 30027799259251922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 122531221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122531239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61265609 + 61265610.

It is an arithmetic number, because the mean of its divisors is an integer number (61265610).

Almost surely, 2^122531219 is an apocalyptic number.

122531219 is a deficient number, since it is larger than the sum of its proper divisors (1).

122531219 is an equidigital number, since it uses as much as digits as its factorization.

122531219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 122531219 is about 11069.3820514065. The cubic root of 122531219 is about 496.6863803615.

The spelling of 122531219 in words is "one hundred twenty-two million, five hundred thirty-one thousand, two hundred nineteen".